Cloth holder



$- PICARD CLOTH HOLDER Dec. 29, 1931.

Filed March 20, 1929 IN VEN TOR. (fia/zzkias aka/a:

gala-w flm A T TORN E YS.

Patented Dec. 29, 1931 STATES STANISLAS rrcann, on PROVIDENCE, nnonnISLAND, ASSIGNOR T 13. B. a n. nnren'r CORPORATION, or rnovrnsncn, nnonnISLAND, A conronnrron or EHODE IsLAnn CLOTH HOLDER Application filedMarch 20, 1929. Serial No. 348,513.

This invention relates to a cloth holder for a machine for extractingthreads in connection with hem stitching and the like; and has for itsobjectto provide a construction 3 which will cooperate with the feedingmeans for the cloth to stretch the cloth and hold it taut while beingacted upon by the needle.

A further object of the invention is the provision of a cloth supportingplate which presents diverging edges on either side of the clothpiercing member to cooperate with corresponding diverging edges of shoesor presser means to engage the cloth to stretch and hold the same tightwhile being acted upon by the cloth piercing member.

This invention further consists in the undercutting or beveling of theedges of the shoes which are mounted on the presser feet to assist instretching the cloth as the presser feet move downward to clamp thecloth'in position.

With these and other objects in view, the invention consists ofcertainnovel features of construction, as will be more fully described, andparticularly pointed out in the appended claims.

In the accompanying drawings: Fig. l is a front elevation of thatportion of the thread deflectingmachine for holding the cloth asoperated upon by the thread deflector.

Fig. 2 is a perspective view of the throat plate of the machine showingthe opening y through which the deflector needle passes and the feeddogs in position with the cloth supporting plates on either side of thefeed dogs with their edges diverging in the direction of feed. Fig. 3 isa perspective view of one of the presser feet which i common to thistype of machine. r i I Fig. 4 is a perspective view of a pair of shoeswhich are mounted upon the presser feet.

Fig. 5 is a top plan view of the relation of the presser feet and thesupporting plate showing the cooperating wedge-shaped portions of each.v

.Fig. 6 is a sectional view'ta-ken through a of machine I do not limitit to this particular with suitable openings 12 through which feed thedeflector opening and showing a piece of cloth as being fed through themachine.

Fig. 7 is a sectional view showing the relation of the cloth supportingplate and presser means. I @165 Inthe operation of thread extractingmachines which are used to remove the threads in hem stitchingoperations, the operator must hold the cloth tight on either side of thedeflector needle as the cloth is being fed; .60 through the machine inorder that the threads which it is desired should not be removed willnotbe ruptured orbroken during theremoving operation, and in order thatthe constant attention of a skilled operator will notrfib be requiredand that a less skilled operator 'may be employed, I have provided acontracting machine used in connection with chine or other machine inwhich the cloth operated upon is pierced by some member or desiredoperating instrument and 'altho I have illustrated and described thisinvention in connection with this particular type type of construction.

With reference to the drawings, 10 designats the tableor work support ofthe machine in which a throat plate 11 is provided dogs 13 operate toadvance the cloth through the machine in the well known manner oflifting the feed dog by a cam into engagement with the cloth 14 whichupward movement also lifts the presser means 15 to release it afterwhich a rearward movement in the direction of the arrow A feeds thecloth along the presser means over the throat plate and the table ashort distance and then. the feed dogs are lowered permitting thepresser means to again clamp the work at the time of operation of thedeflector 16 as will be more fully described. The usual opening 17 isprovided in the throat plate to receive the deflector needle 16 which issuitably reciprocated.

The pres'ser means 15 consists of a pair'of feet 18 at theend of rods 19which are forced downwardly by means of springs 20, the rods l qfbeingsupported in a suitable yoke 21,

and on each of these feet I have mounted a shoe 22 which is providedwith a pair of upstanding projections 23 to extend along each edge ofthe foot 18 and through openings 25 and 26 in the projections and feet apivot pin 24 extends to pivotally mount each shoe to vary the thicknessof the-cloth on either side of the feed dogs.

. throat plate 11.

Iihave mounteda 'cloth supporting means the .form of a ,pair of spacedplates 29 which {present edges 30 perpendicular to the These edgesdiverge from eachwtherin the directi'on'of the feed of the clothsoas tobe Spaced apart a greater distance as they rec'ede from the front of themachine and present sharp corners 31 between which and the undercutbeveled edges 32 of each of the shoe 22 the cloth 14 is "cIampedg-a's isillustrated in Fig. 1. By rea- :son of this undercut oroverhanging'ed-ge of each of'the shoes "as the presser descends und'eraction of the springs 20 the "cloth is stretchedand tightly boundbetween the-corner edge '31 and some point along the :bevel or under cutsurface -32-of the presser shoes holding it taut for action by thedeflector or needle to remove the threads in the customa-ry manner.

The operation of the presser shoe in confeet for releasing the clothfrom binding engagement with the corner edge- 31 permitting the feeddogs to move the cloth rearwairdly after which the cloth is againclamped 'theshoes between the inclined edges thereof and the'corneredge31.

';It will also be understood that the shape of the parts is such that asthe cloth moves rearward-1y the diverging edges "between which itis'cl-amped will cause the cloth to be stretched tightly and held tautby the presser shoes foractionbythe deflector needle 16 a'nd .yet thesepresser shoes are adapted to move one relative to the other or swingupon the member. unction with the feed dogs raises the presser presserfeet to accommodate themselves to various imperfections or knots in thecloth. Each of the shoes is curved upwardly as at 33 which assists inthe accommodation of imperfections and in ironing out any folds in thecloth as the same is fed into position for operation.

The foregoing description is directed solely towards the constructionillustrated, but I desire it to be understood that I reserve-theprivilege of resorting to all the mechanical changes to which the deviceis susceptible, 'th'e invention being defined and limited only by theterms of the appended claims.

I claim: Iii-combination with a cloth piercing machine having'a throatplate anda piercing member for passing through the iplatya clothsupporting means presenting a'surface raised from said throat pla'teterminating ateither sideof said member to present spaced raisedmarginal edges in a straight line extending -a substantial distance infront of and to the rear of the piercing member, and presser meanspositioned between spaced edges and shaped to-cooperate withsaid'edgesand hold the clothv tight between them as acted upon by said member.

2. In a machine of the character described, a cloth piercing member, awork supporting plate, ineans having an opening adjacent the clothpiercing member generally wedge shaped with the distance between theedges of the material about the'ojpening increasing "in the direction offeed of the cloth, and

presser means of a shape to cooperate with the edges of said opening tohold the cloth tight-as operated 11513011 by the cloth piercing member.

B. In combination with a cloth piercing machine having a throat plateand piercing member for passing through the plate, a cloth supportingmeans presenting a surface raised fromsaid throat plateand terminatingat either :side of said member and presenting spaced edges diverging inthe direction of feed-of t'hecloth and presser means shaped to cooperatewith said edges and hold the cloth tight between them as acted upon bysaid 4. In a machine of the character'described, a cloth piercingmember, plate means for supporting the work having an opening adjacentthe cloth piercing member generally wedge shape with the distancebetween the edges of the plate means about the opening increasing in thedirection of feed of the cloth, and presser feet having shoes with theirouter edges diverging to engage said edges and hold the cloth tightwhile being acted upon by said member.

5. In combination with a cloth piercing machine having a throat plateand a piercing member for passing through the plate, acloth'si'lpporting means presenting a surface raised from said throatplate and terminating at either side of said member and presentingspaced edges diverging in the direction of feed of the cloth, andpresser feet having shoes with their outer edges diverging to engagesaid edges and hold the cloth tight while being acted upon by saidmember.

6. In combination with a cloth piercing machine having a throat plateand piercing member for passing through the plate, a cloth supportingmeans presenting a surface raised from said throat plate and terminatingat either side of said member and presenting spaced edges and pressermeans positioned between said edges and having undercut beveled edges toengage the said spaced edges of said surface to stretch and hold thecloth tight when clamped therebetween.

7. In a machine of the character described,

a cloth piercing member, a work supporting plate, means having anopening adjacent the cloth piercing member generally wedge shape withthe distance between the edges of the plate about the opening increasingin the direction of feed of the cloth, and presser means of a shape tocooperate with the edges of said opening to hold the cloth tight as0perated upon by the cloth piercing member, said presser means havingundercut beveled edges to cooperate with the edges of said opening tostretch the cloth as clamped.

8. In combination with a cloth piercing machine having a throat plateand piercing member for passing through the plate,

a cloth supporting means presenting a surface raised from said throatplate and terminating at either side of said member to present spacededges diverging in the direction of feed of the cloth and presser meansshaped to cooperate with said edges and hold the cloth tight betweenthem as acted upon by said member, said presser means having undercutbeveled edges to engage the said spaced edges of said surface to stretchand hold the cloth tight as clamped thereby.

9. In a thread removing machine, a throat plate having an openingtherein, a thread deflector to extend through said opening, feed dogsoperating through said plate, cloth supporting plates spaced apart andlocated on either side of said deflector, said plates each having anedge perpendicular to said throat plate and diverging from each other inthe direction of feed of the cloth, a pair of presser feet, a shoepivoted on each of said feet, said shoes being in contiguous relationwith the outer edges diverging and undercut to cooperate with the edgesof said supporting plate to stretch the cloth and hold it tight 1 whilebeing operated on by the deflector.

In testimony whereof I aflix my signature STANISLAS PICARD.

